This is why the heaviest animals alive today - whales - can only live in water. It helps to support their mass, which can be as much as 180 tonnes in the case of blue whales, equal to 30 elephants.

The buried crater, over 90 miles in diameter, was created when a massive asteroid struck the planet 66 million years ago and brought a calamitous end to the reign of dinosaurs. Though dinosaur ...

The largest group of all the dinosaurs were the titanosaurs, which included Argentinosaurus and Patagotitan. It's not clear why some dinosaurs were so big, though scientists think that their ...